The Greentherm 9000 series indoor models were specifically designed with top connections for water, integrated drain ports so isolation valves are not needed, and a unique integrated sensor technology that auto-calibrates, making the switch to tankless water heating quick and easy. All Greentherm 9000 Series models feature sleek, rounded corners on the metal cabinet, making these water heaters as beautiful as they are energy-efficient. The premium Greentherm 9900i SE model comes standard with a glass front and integrated Wi-Fi control (available as option on other models). The free Greentherm 9000 mobile app allows you to remotely control the water temp, activate the recirculation pump, and monitor usage and sensor values from your cellphone or tablet. Choose from seven models to ensure a configuration for any need from small home or condo to large commercial applications. Indoor models can be converted from natural gas (NG) to liquid propane (LPG), and flexible venting options keep installation simple.

The Bosch Greentherm T 9900 SE 160 Condensing tankless water heater is a top performance, fully condensing gas tankless water heater from Bosch. This 160,000 BTU heater is designed for residential applications and can deliver hot water up to 140 degrees F with a 9 GPM flow rate at a 35 degree F temperature rise.
This Energy Star approved tankless water can produce enough hot water for 2-3 major applications in most homes. The Bosch Greentherm T9900 SE 199 Tankless Water Heater features top-mounted water connections which lowers labor costs and parts requirements and makes for an easy conversion from an existing tank water heater. This unit also features a sleek built-in touch screen that simplifies setup and provides convenient water temperature control. Built-in freeze protection comes standard with this unit.

The Bosch Greentherm T 9900 SE 160 Condensing tankless water heater is a top performance, fully condensing gas tankless water heater from Bosch. This 160,000 BTU heater is designed for residential applications and can deliver hot water up to 140 degrees F with a 9 GPM flow rate at a 35 degree F temperature rise.
This Energy Star approved tankless water can produce enough hot water for 2-3 major applications in most homes. The Bosch Greentherm T9900 SE 199 Tankless Water Heater features top-mounted water connections which lowers labor costs and parts requirements and makes for an easy conversion from an existing tank water heater. This unit also features a sleek built-in touch screen that simplifies setup and provides convenient water temperature control. Built-in freeze protection comes standard with this unit.